/*-
 * Copyright (c) 2006 Vishal Patil <bsd.devil@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

#include "iscsi_util.h"
#include "iscsi_session.h"
#include <string.h>

/* Used for generation of unique ISIDs */
static const uint8_t isid_prefix[] = {'v','i','s','h'};
#define ISID_SUFFIX_INDEX 4

/* Used to keep a count of number of sessions create so far*/
static uint16_t sess_count;

int 
iscsi_session_init(struct iscsi_session * sess) 
{
	memset(sess,0,sizeof(*sess));
	sess->state = ISCSI_SESS_FREE;
	
	/* Generate ISID using the prefix and the session count */
	strncpy(sess->isid,isid_prefix,sizeof(isid_prefix));
	sess->isid[ISID_SUFFIX_INDEX] = ++sess_count;
		
	return 0;
}

int
iscsi_session_add_conn(struct iscsi_session * sess,
		                        struct iscsi_conn * conn) 
{
	conn->next 		= sess->conn_head;
	conn->cid		= ++sess->next_cid;
	sess->conn_head 	= conn;
	sess->active_conn 	= conn;
	return 0;
}

